Lack of Service & Empty Promises

On 04-08-17 I upgraded my contract and was promised to have my device delivered to me no later than 11-08-17, to date I have not received my device, and this morning when I called them to find out where it is, I get told that I’m still on back order and there is a lot of people waiting not just me. What USELESS service is this??? Why upgrade a contract knowing you don’t have the device??? If I knew that I needed to wait a month or two before I got my device I WOULD NEVER OF UPGRADED WITH GLOCELL (there are stores that have the S8 on hand)- but that’s probably why they **** and said I would have it in a week. I have spoken to around 10 different agents who are all rude with a bad attitude, I have to wait on the line for 20minutes each time to speak to these useless people, they cut the call on me multiple times, they don’t reply to email or anything in that case, but let’s not forget how willing to assist they are when it’s time to upgrade. I will never renew another contract with Glocell again.